US236771A - Steam-plow - Google Patents

Description

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. Steam Plow, l 236,771; Y v*Patented Jan. V18, 188|.

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g Steam Plow'. No. 236,771. Patented Jan. 18, |881.

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Steam Plow. No. 236,771,- .Patntedlam 18,1881.

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`UNITED STATES PATENT OFFICE.

EPHRAIM BROWN, OF LOWELL, MASSACHUSETTS.

l STEAM-PLOW.

SPECIFICATION forming part of Letters Patent No. 236,771, dated January 18, 1881.

Application filed April 8, 1880. (Model.)

To all whom it may concern:

Be it known that I, EPHRAIM BROWN, of Lowell, Massachusetts, have invented a new and useful Steam-Plow, of which the following is a specification.

My invention relates to improvements in plows moved and actuated by steam-engines; and the object of my'improvement is to provide a steam-plow which shall, without the use of chains or ropes extending across the field, move its plows a much greater distance in a given time than the body of the engine driving it. I attain these objects by the mechanism illustrated in the accompanying drawings.

Figure l is a plan view of my device. Fig. 2 is a side elevation of the same. Fig. 3 is a rear view of the frame carrying the plows, With the plows and connected parts.

A is the frame on which an engine is placed. o. is the boiler of the engine; a', the cylinder; O, the crank-shaft; D, theshaft connected by means of the gears cc' c2 c3 c4 c5 with the shaft C. This shaft rotates in the sleeve E, which is provided with the arms ee, forming a yoke, swinging upon the shaft O. The other end of the shaft D is sustained in the oscillating box d, and is provided with a wheel, d2, having strong teeth upon its periphery.

Upon the shaft O are also placed two coneclutches, B B, whose outer or driven parts, b b, have miter-gears out upon them. These outer geared parts are placed lat such distance from each other that both are in constant engagement with the miter-gear W on shaftw. The external cones or driving parts of the clutches are placed at a somewhat greater vdistance apart than the driven parts, and are lnoved upon the shaft C by the fork-carrier V, which moves both driving parts of the cone-clutch in the same direction at the same time, and is actuated by the pinion o and rack o', attached to the fork-carrier V. When the fork-carrier is moved toward the wheel c the clutch next the y-wheel U Willhave its parts put in engagement, and will move the gear W in one direction, and if the fork-carrier be moved in the opposite direction the other clutch will be put in engagement, while the first will be released, and the gear W will be driven in the opposite direction.

On the shaft 'w' is the worm to2, which drives the gear @05 through the gears w3 and w. The gear co5 drives the shaft F, on which are the pinions t t, into which the clutch-gears s s eugage. These clutches engage with the main drive-wheels S S.

. On the shaft F is also a bevel-gear, driving the shaft R, on which shaft is a pinion, 1',- which drives the ring-wheel P, which engages with the pinions p on the axle of the forward drive-wheels, p'. The ring-wheel P is hung and moves on the circular stationary platform P2. O is a platform moving under this platform, to which are attached the boxes in which the axle o of the front drive-wheels rotates. Attached to the platform is a rack, o, into which the pinion o2 engages. This pinion is driven by the worm-wheel o3 on shaft o4. The worm-wheel'o3 is actuated by the worm o5. On the axle o are placed one or more wheels, p. When more than one is used they can be connected with the pinion driven by the ringwheel by a clutch, p3, so that either may be disconnected,if desired. These forward drive- Wheels, as also the main drive-wheels, can have cutting-anges attached to them, to prevent any lateral motion of the engine from the draft of the plows.

When it is desirable to move the engine at a faster speed the shaft fw communicates its motion to wheel 'L05 through a bevel-pinion and bevel and spur Wheels made to be substituted in place of the worm to2 and gears w3 and w', This substitution is effected by taking out those gears, by removing the shaft on which they rotate from its lug a2 on the frame A, and putting upon it a bevel-Wheel having attached to itapinion which engages with wheel wf". This bevel-wheel is driven by a pinion put upon shaft to. By having several sizes of Wheels any required speed may be obtained.

' Gr is a frame attached to the rear of the eugine-frame, and havin g its greaterlen gth transverse to the direction of motion of the engine. This frame is provided with ways g above and below, in which the endless chain or rope I moves, passing from the lower to the upper side and from the upper to the lower side over the wheels K K. The lower side of the ways g have their ends elevated, so that when the plows pass around the Wheel K their guidetruck will come into contact with the ways,

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and the plows will have nearly approached their operative position before they enter the soil, and so that the furrow may be begun by the plow gradually, and reaching its maximum depth be continued without great change in its direction of movement, while at the same time the plow will be sustained and directed by the ways, so that any small obstruction cannot divert it from its proper path. This chain or rope is made double, the two parts being connected together by rods or shafts ii, which are provided with wheels or trucks which run in the ways g g, which are formed of channel or E-shaped iron, and therefore have both overlapping and underlapping edges. between which the trucks supporting the plows and chain pass, so that the plow will be rigidly' held and prevented from having its point elevated or depressed by coming in contact with the Soil; for, if the guide-truck to which the plow is attached is retained in position by the under and over lapping edges ot'the ways, it is manifest that the plows must preserve their proper direction and cannot be swerved therefrom. At propcrdistances the chain has a lugor scraper, k', attached, to remove any dirt which may fall into the ways g. lt also has upon it plates gi, which prevent the soil which may be thrown or brought upfroni entering the chain or ways. Upon this chain 1 attach plows J J, which',being carried forward by the chain,plow a. furrow as it moves them under the frame, and arriving at the end will be lifted out of the soil and carried back over the top of the frame t0 its other end, where they will descend into the soil and plow another furrow, while the speed of the engine, heilig arranged so that it will be moved forward the proper distance from the place of the last entry of the last preceding plow, will begin each new furrow at a proper lateral distance from the one last made. The chain is driven by the toothed wheel alz on shaft D.

The frame G is provided with guides or ways g8, in which the sliding frame g4 moves. This frame is attached to the frame A by bolts, so that for movement from place to place it can be detached, if desired. By means of a screw-shaft, h, the frame G is elevated or lowered in relation to the frame g4, to adjust the depth of the furrow cut bythe plows J. The

screw-shaft h being attached only to the frame G, the frame g4 can be lowered in the ways y, merely dropping away from the end of the screw-shaft, thus permitting the engine and frame to descend to accommodate itself to any inequality in the ground.

0n the lower part ot the frame G are lugs y". in which are holes, through which,by means of bolts, it may be attached to wheels like ordinary wagon-wheels, on which it may be transported from place to place when detached from the frame on which the engine rests. By means of the same holes there can be attached to it the drnni-whcels H H when it is in use, and which will support its weight when, from any inequality in the ground, the engine de scends and it is not desirable to have the plows depressed beyond the depth at which they are set to operate. These drums are provided with a cuttngdange of greater diameter than tho drums, which, entering the soil, tend to prevent any lateral movement of' the engine by reason of the drag of the plows.

The frame G is made hinged at the points l.' k, and the ends g5 can be elevated when the braces 96 are unhooked at their upper ends.

The plows J are adjusted at a small angle to the direction of the chain, to put them in exact line of the furrow, which is not exactly parallel with the chain.

What I claim as new and ot' my invention 1sl. The combination of the shaft U, clutches B B, shaft if', shaft T, elutchgears s s, and traction-wheels S S, substantially as described.

2. The combination of a traction-engine, carrying upon it a, frame placed transversely to the direction of the engine, whose length is as great as any one furrow plowed by the plows driven hy the engine, the frame being provided on its lower side with ways whose ends are ward movement and guided by the ways hefore it begins its furrow, substantially as described.

3. The combination, with a traction-engine, of a traverse-frame provided with ways, with which guide-plates, to which plows are attached, come into contact before the plows enter the soil, and which have upper and lower flanges to preserve the guide-plates in proper line of movement, substantially as described.

4. The combination, with an endless chain carrying plows upon it around and over guideways, ot' guard-plates to prevent the soil from falling into the ways, substantially as described.

5. The combination, with an endless chain carrying plows guided by channeled ways, of 1 ro elevated, so that `theplow shallbe upon its for- IOO

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